丝绸的光引发丙烯酸羟丙酯接枝研究

Graft copolymerization of 2-hydroxypropyl acrylate onto silk fabrics initiated by ultraviolet rays

以丙烯酸羟丙酯为单体,就丝绸的紫外光光化学接枝改性进行了系统研究。用红外光谱(FT-IR)和差示扫描量热法(DSC)等对光接枝产物进行了表征。探索了光照时间、单体浓度、pH 值、温度、溶剂体系对接枝率的影响规律。研究表明,该方法较辐射接枝能获得更高的接枝率,且有无污染、设备简便、易于操作、均聚物较少等优点,不失为一种更有效的丝绸改性方法。

Silk fabric samples were grafted with 2-hydroxypropyl acrylate monomer by ultraviolet rays, and a light-initiated graft copolymerization system without any additives or co-additives has been established. Experiments were performed to study the effects of monomer concentration, irradiation time, pH value, and reaction temperature on the grafting rate. FT-IR and DSC characterizations of the grafted silk samples were carried out to study the property changes in the silk fabrics. With advantages of fairly high graft rate, simpler equipment and operation, free of additives, and less homopolymer, the method can be an effective technique to improve the properties of silk fabrics.